Foojay is the vendor-neutral home for the Java community with daily news, OpenJDK data, podcasts and guides, made by the developers who use it. What is Foojay? →
Oracle's free NFTC license for Java 21 has expired, and the October 2026 quarterly update is the first one enterprises have to pay for. Here are the three options left, and why the timeline is short!
Dana Crane
166 views
Welcome to the new Foojay!
The same content from amazing Java developers, now in a new home. Foojay has been rebuilt from the ground up!
Cut Code Review Time & Bugs in Half. Instantly.
Supercharge your team to ship faster with the most advanced AI code reviews.
Sponsored Content
Free eBook: Sustainability for Java Developers
Towards an understanding of sustainable software development, written by and for the friends of OpenJDK
Your GPU spend is optimized. Your JVM probably isn’t.
Hidden JVM inefficiencies - GC pauses, conservative JIT, slow warm-up - are quietly draining your AI infrastructure's performance and cloud spend. This guide shows how to eliminate that drag and scale with fewer nodes.
Sponsored Content
Arpan Sharma
95 viewsA static auditor that estimates what a post-quantum migration will cost a Java codebase, run across 27 popular Java projects to show where …
Ishan Shah
75 viewsUse Testcontainers and JUnit to test Kafka consumer recovery contracts for duplicate delivery, malformed records, and offset-boundary …
Nicolas Frankel
67 viewsA follow-up on AI-assisted genealogy: source quality with GEDCOM QUAY, per-site browsing skills, Playwright sessions, transcriptions, and …
A N M Bazlur Rahman
82 viewsExplore MySQL JSON Duality Views in Java: simpler reads, safe document writes, ORM comparisons, and read-only tools for a local AI …
Luis Majano
53 viewsBoxLang AI 3.4.0 introduces gateways, durable human approvals, layered AI security, normalized reasoning, run control, and improvements …
Shai Almog
57 viewsCodename One adds native call management and VPN APIs, while its builders generate the platform services, frameworks, permissions, and …
Frank Delporte
303 viewsFoojay articles now render Mermaid diagrams from a fenced code block. Write the diagram in Markdown, get a real diagram, and keep it …
Frank Delporte
174 viewsFoojay articles can now be written in AsciiDoc as well as Markdown. Named blocks, real tables, source callouts and admonitions — the things …
Frank Delporte
503 viewsFoojay has a new home: a static, open-source site where publishing an article is a pull request. Same URLs, same archive, much faster, and …
Nicolas Frankel
147 viewsYears ago, a colleague of mine told me about two pockets of foreign land surrounded by Switzerland: Campione d'Italia and Büsingen am …
Catch up on the most recent episodes and stay updated with the latest OpenJDK innovations.
239 viewsSimon Ritter on JDK 27: compact object headers, G1 everywhere by default, post-quantum TLS, monthly security updates, and Valhalla's first …
616 viewsFoojay Podcast hits episode 100. No plan, no roadmap. It just happened. To mark the occasion, Frank turned the microphone around and invited …
686 viewsYour Java AI app is live. But have you tested whether it can be jailbroken? Iryna Dohndorf introduces Tiberius, an open-source security …
557 viewsWebAssembly is already running inside Java applications, most developers just don't know it yet. In this episode, Andrea Peruffo walks us …
Meetups from Java User Groups worldwide, plus the conferences and workshops on the calendar.
Is Java your first language, or are you coming from another one? Let Friends Of OpenJDK help you get up and running.
One-time setup to get Java on your machine: check whether you already have it, then install it on Windows, macOS or Linux.
Java Quick Start Tutorial: A high-speed introduction to Java in single source files: no project, no build tool, just java HelloWorld.java and go.
Done, or want another voice? 6 more free Java courses and tutorials, picked by the community.
Explore the full breadth of what the community writes about.
